Get a list of Collections objects. Collections have a 1:1 mapping with Observations.

### Available end points:

- `/observationcollections/` - Will list all Collections in the database
- `/observationcollections.json` - Will return all Collections in json format
- `/observationcollections/<object_id>/` - Returns Collections object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `uuid`
- `title`
- `keywords`
- `discoveryKeywords`
- `publicationState`

### How to use filters:

- `/observationcollections/?uuid=ab4ca8d019d148f78afba1cd20872bdd`

- `/observationcollections.json?publicationState=citable`

GET /api/v2/observationcollections/6702/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 6702,
    "uuid": "a2ce888a0a8a8238b1621447e65d5a88",
    "title": "Met Office Northern Hemisphere Gridded Mean Sea Level Pressure (MSLP) Daily and Monthly Series (1873-2005)",
    "abstract": "This dataset holds gridded (5° latitude by 10° longitude grid) Northern Hemisphere (north of 15N) daily and monthly series of Mean Sea Level Pressure fields. The monthly series data are available for the period 1873 to 2005; the daily series data are available for the period 1881 to 2005. The data was supplied by the Met Office, Hadley Centre.\r\n",
    "keywords": "Met Office, Hadley,MSLP, hemisphere",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2001-12-10T03:09:11",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6703/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/6706/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4401/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4402/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10394/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28816/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28815/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28817/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28818/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28819/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43172/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43171/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28821/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/46824/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/55003/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/169568/?format=api"
    ]
}